Sensor Modules for Measurement Arrays

Product Specifications

Technical details and manufacturing context for Sensor Modules

Definition

Sensor modules are self-contained components within a Measurement Sensor Array that combine sensing elements, signal conditioning circuits, and often communication interfaces to detect and quantify specific physical phenomena such as temperature, pressure, humidity, motion, or chemical composition. They serve as the fundamental data acquisition units in the array. These modules are designed to interface with a central processing unit, transmitting conditioned electrical signals that represent the measured physical quantity. The sensing element, often based on semiconductor or ceramic technology, responds to the physical stimulus, while the onboard electronics amplify, filter, and digitize the raw signal to ensure accuracy and reliability. The modules are housed in a polymer or stainless steel enclosure, providing mechanical protection and environmental sealing. They are typically powered by a 5 V DC supply with reverse polarity protection, and output a 4–20 mA two-wire loop signal, making them compatible with standard industrial control systems. Key performance parameters include an accuracy of ±0.5% FS (per IEC 60770), operating temperature range of -40 to 85 °C, and storage temperature range of -40 to 125 °C. The ingress protection rating is IP65 to IP67 (per IEC 60529), with a response time of ≤10 ms for 90% of step change. Insulation resistance is ≥100 MΩ at 500 V DC (per IEC 60255-5), and the modules withstand shock of 50 g (half-sine 11 ms) and vibration of 20 g (10–2000 Hz) per IEC 60068-2-27 and IEC 60068-2-6, respectively. The housing material is 316L stainless steel, with optional PTFE coating, and the weight is ≤150 g without cable. These modules are intended for use in industrial environments where accurate and reliable measurement is critical. It is essential to verify model-specific values and standards with the legal manufacturer or supplier, as the listed parameters are reference ranges for the product family.

Working Principle

Sensor modules operate by converting a physical stimulus (e.g., temperature change, pressure force, light intensity) into an electrical signal using a transducer. This raw signal is then conditioned (amplified, filtered, digitized) by onboard electronics before being transmitted to the array's central processing unit for interpretation and analysis. The transducer's output is typically a small voltage or current that varies with the measured quantity. The conditioning circuitry ensures the signal is within the required range and free from noise, and may include linearization to compensate for sensor nonlinearity. The final output is a standardized 4–20 mA current loop signal, which is robust against electrical interference and can be transmitted over long distances. The module's power supply is 5 V DC with reverse polarity protection, ensuring safe operation. The entire process is designed to provide accurate and repeatable measurements under varying environmental conditions.

Common Materials

Semiconductor (e.g., Silicon), Ceramic Substrate, Polymer Housing, Copper Alloy Connectors

Technical Parameters

Parameter	Typical range	Notes & selection driver
Supply Voltage	5 ±10% V DC	Reverse polarity protection required
Output Signal	4–20 mA	Two-wire loop powered
Accuracy	±0.5 % FS	Includes nonlinearity, hysteresis, repeatabilityIEC 60770
Operating Temperature	-40–85 °C	Extended range available on request
Storage Temperature	-40–125 °C	Non-condensing environment
Ingress Protection	IP65–IP67	Mating connector required for IP67IEC 60529
Response Time	≤10 ms	For 90% of step change
Insulation Resistance	≥100 MΩ	At 500 V DCIEC 60255-5
Shock Resistance	50 g	Half-sine 11 msIEC 60068-2-27
Vibration Resistance	20 g	10–2000 HzIEC 60068-2-6
Housing Material	316L	Stainless steel, optional PTFE coatingASTM A240
Weight	≤150 g	Without cable

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Sensing Element Part
Directly interacts with the target physical parameter and generates a preliminary electrical response.

Material: Varies (e.g., Thermistor for temperature, Piezoresistive crystal for pressure)
Signal Conditioning Circuit
Amplifies, filters, and converts the raw signal from the sensing element into a stable, usable format.

Material: Printed Circuit Board (PCB) with integrated circuits (ICs) and passive components
Communication Interface
Enables data transmission from the module to the central array processor.

Material: PCB with connector pins or wireless transceiver chip
Protective Housing
Encapsulates and protects internal components from environmental factors like moisture, dust, and mechanical shock.

Material: Polymer (e.g., ABS, PBT) or metal alloy

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Measurement Sensor Array

View system integration details

Manufacturers of Sensor Modules

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Frequently Asked Questions

What is the supply voltage requirement for these sensor modules?

The supply voltage is 5 V DC with a tolerance of ±10%. Reverse polarity protection is required, meaning the module must be connected with correct polarity to avoid damage.

What output signal do these sensor modules provide?

The output signal is a 4–20 mA two-wire loop current. This is a standard industrial analog signal that can be easily interfaced with PLCs and other control systems.

What is the accuracy of these sensor modules?

The accuracy is ±0.5% of full scale (FS), which includes nonlinearity, hysteresis, and repeatability. This is specified according to IEC 60770.

What are the environmental limits for these sensor modules?

The operating temperature range is -40 to 85 °C, and the storage temperature range is -40 to 125 °C. The ingress protection rating is IP65 to IP67 (per IEC 60529), but a mating connector is required to achieve IP67.

Data Basis

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Preliminary Technical Classification

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pressure:	0 to 100 bar
flow rate:	0 to 10 m/s
temperature:	-40°C to +125°C
slurry concentration:	0 to 30% solids by weight

Sensor Modules

Product Specifications

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